What is the project size limit in NVivo for Windows?

The project size limit in NVivo for Windows is 10GB (or unlimited, for NVivo Server projects).

NVivo projects are able to handle up to thousands of sources including documents, audio, video, pictures, PDFs and datasets.

Please note that by default, audio and video sources over 20MB will be stored externally to your project and they will not contribute to your project's file size. You may choose to increase this limit to a maximum of 40MB (or 100MB, for NVivo Server projects).